If you can ascertain that the temperature of the soup itself was between 140°F and 70°F for only two hours or less, then I'd say you could either reheat it or refrigerate it and would not have to throw it out.
If you can't determine that, then there is no way that a food safety person would say that it is OK to use.
You, ultimately, are the person who will have to determine whether or not to use it.
Yes, it can. Stew should be refrigerated within two hours after it is cooked.
No. Ten hours is too long without refrigeration.
Immediate refrigeration - no. But it should be refrigerated within 2 hours of cooking. Less time is even better.
no, about 2 hours is max
In my experience, a tuna fish sandwich can survive for some hours without refrigeration - you can take one to school with you in your lunchbox - but for any longer period of time, yes, it would need refrigeration.
No more than one hour. Left without refrigeration too long and the food begins to spoil, which means bacteria start forming that could make you ill if you ate tainted food.
you may leave it out for just about 2 1/2 hours but after that the food has been left too long in the "Danger Zone".
About 2 to 4 hours, unless it is in the sun, and then it doesn't hold up well at all.
coming from a military point of view, all fresh meat should be cooked with in 24 hours, if frozen, thawed properly under refrigeration 24 hours to thaw and cooked immediately. cooked to internal temp of at least 170 degrees, used with in 24-48 hours if after cooking and serving allowed to cool down properly. then air wrap. I have had pork spoil on me from wrapping too soon.
You can typically leave out cooked turkey bacon for a few hours without it spoiling. It should be covered with a napkin or paper towel.
Poultry that is cooked can be a potentially hazardous food if not properly refrigerated. Once the temperature has gotten above 40 degrees Fahrenheit for more than 2 hours, the food should be discarded. The food might not actually appear spoiled but foodbourne pathogens and toxins do not make their presence known until many hours after the food has been consumed. The two hour guideline is conservative, but it would be better to discard the food than to suffer the consequences.
where allowed tcs hot food can be held without temperature control for a maximum of how many hours before being sold , served or thrown out